| 摘要 |
<p>A diesel engine fuel injector has a needle 10 controlled by two springs 24, 48 which act in series. The first spring 24 is overcome first to allow an initial volume of fuel to be injected. The second spring 48 is substantially overcome to allow a further volume to be injected. The allowable needle lift in each stage is set by stops 40, 46, and the positions of both these stops can be adjusted using a threaded and lockable adjustment. <IMAGE></p> |
